Three Views

Nine photos of each are on the Three Views page.  Compare this month’s to last and see how low the river has gotten.

September 2, 2015 
77 F at 9:14 am; overcast

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8:39 am EDT  28mm  f/7.1  1/125 sec  ISO 320

Billy Goat B trail, east end, looking southeast across a narrow channel toward Vaso Island


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9:51 am EDT  31mm  f/9.0  1/200 sec  ISO 320

Billy Goat B, mid-way between trailheads, looking upstream (more or less northwest) with Hermit Island on the left.


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10:48 am EDT  40mm  f/9.0  1/250 sec  ISO 160

boat launch ramp near Old Angers Inn, looking downstream and more or less south

Exploring My New Beat: the Lower Potomac Gorge

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sunrise on Great Falls; November 2014

As you may recall, the Potomac Gorge is the 15-mile long section of river in the Fall Zone, the transition area from the metamorphic rocks of the Piedmont physiographic region to the unconsolidated sediments of the Coastal Plain, starting at Great Falls and ending at Roosevelt Island.

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the river near Hermit Island; July 2015

For several years I’ve been concentrating on the area between Sherwin Island at the lower end of the falls and Rock Run, just upstream of the American Legion Bridge, with the occasional detour south as far as Brookmont or north to the start of the falls.

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view upstream from one of the bedrock terraces near Rock Run; August 2015

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pond within a bedrock terrace, about 15 feet above river level when this photo was taken; July 2015

But while the warm weather lasts I’m going to be exploring the lower Gorge by kayak.  With a real camera this time: I rigged up a way to keep the D3200 dry. Now that I have decent pictures expect to see posts about some different wildflowers.

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view upstream from the lower Gorge (Fletcher’s Cove is around the bend); August 2015

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osprey (Pandion haliaetus) near Chain Bridge; August 2015

And perhaps the occasional bird.  (On two outings, I’ve seen four ospreys, two bald eagles, one double-crested cormorant, several great blue herons, and more mallards than you can shake a stick at).

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kayaker, Washington Monument, and airplane (the little dot in the upper right); colors aren’t so vivid when you’re shooting into the sun; August 2015

Three Views

Weather’s been a little drier, a little closer to normal for July, though the river seems to be running a bit high for mid-summer.

Go to the Three Views page to see the same views in from earlier this year.  The month-to-month changes are not as dramatic now as they were early in the year, but the progression is still interesting.

Technical note: these photos were taken with a full-frame camera; the previous ones with a crop sensor.  The effective focal length is about the same.

July 31, 2015 
72 F at 8:30 am; clear

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8:46 am EDT  24mm  f/7.1  1/160sec  ISO 800

Billy Goat B trail, east end, looking southeast across a narrow channel toward Vaso Island


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9:29 am EDT  24mm  f/8.0  1/160 sec  ISO 200

Billy Goat B, mid-way between trailheads, looking upstream (more or less northwest) with Hermit Island on the left.


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10:25 am EDT  24mm  f/8.0  1/200 sec  ISO 160

boat launch ramp near Old Angers Inn, looking downstream and more or less south

Three Views

The pictures from early June were taken after 4 days of rain.  The pictures for the end of June were taken two days after record-setting rainfalls (1-4 inches) across all the Potomac River watershed upstream of Great Falls.  National Airport got 2.75 inches.  So far, this has been the second-wettest June on record.

The place were I stand to take the Billy Goat B mid-way picture was underwater, and the place where I stand at the boat launch ramp was mere inches away from the water.

Remember to visit the Three Views page to see the same views in from earlier this year.

June 29, 2015 
68 F at 8:47 am; clear

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9:08 am EDT  18mm  f/8.0  1/125sec  ISO 200

Billy Goat B trail, east end, looking southeast across a narrow channel toward Vaso Island


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9:39 am EDT  18mm  f/8.0  1/400 sec  ISO 200

Billy Goat B, mid-way between trailheads, looking upstream (more or less northwest) with Hermit Island on the left.


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10:48 am EDT  18mm  f/8.0  1/250 sec  ISO 200

boat launch ramp near Old Angers Inn, looking downstream and more or less south

Three Views

After four days of rain, the water was high, brown, and running fast.

Don’t forget to go to the Three Views page to see the same views in from earlier this year.  The month-to-month changes are dramatic.  I expect they’ll be less so as summer arrives.

June 6, 2015 
67 F at 8:30 am; high overcast

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8:39 am EDT  18mm  f/8.0  1/200sec  ISO 200

Billy Goat B trail, east end, looking southeast across a narrow channel toward Vaso Island


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9:23 am EDT  18mm  f/8.0  1/200 sec  ISO 200

Billy Goat B, mid-way between trailheads, looking upstream (more or less northwest) with Hermit Island on the left.


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10:04 am EDT  18mm  f/8.0  1/640 sec  ISO 200

boat launch ramp near Old Angers Inn, looking downstream and more or less south